hospital, washington is debating how to handle his prosecution. while the obama administration has agreed to decllay a readingf the miranda rights, the administration is not going along with republicans who are calling for a change in the prosecution play book. >> this man in my view should be designated as a potential enemy combatant and we should be allowed to question him for intelligence gathering purposes. >> literally hundreds of terrorists, those accused of terrorism, have been successfully prosecuted and imprisoned in the united states using the same process that's being used in this case in boston. >> at the same time, lawmakers want to know a lot more about the suspect's dead brother, tamerlan tsarnaev traveled to russia for six months last year after he was brought to the attention of the fbi as a possible islamist extremist. this has added a sharp new angle to the debate over immigration reform. >>> we have new video to share with you tonight. this is home video obtained by nbc news showing surviving bombing suspect dzhokhar tsarnaev competing in a wrestling match in 2009. he'